Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9JTC callsign genealogy
Currently held by Carmichael, Jason T
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by K9JTC's current licensee, walking backwards.
- Calkins, Joel TAZgranted 2018-03-01cancelled 2018-03-20
Successor callsigns
Callsigns held now by people who previously held K9JTC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9JTC, oldest first.
- Carmichael, Jason T IN2005-08-09 → cancelled 2017-08-10
- Calkins, Joel T AZ2018-03-20 active